:root {
  color-scheme: light dark;
  --background: #ffffff;
  --surface: #f5f5f7;
  --text: #171719;
  --secondary: #5d5d64;
  --line: #d9d9df;
  --accent: #6d4aff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #000000;
    --surface: #1c1c1e;
    --text: #f5f5f7;
    --secondary: #b7b7bd;
    --line: #3a3a3c;
    --accent: #a991ff;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

main,
header,
footer {
  width: min(760px, calc(100% - 40px));
  margin-inline: auto;
}

header {
  padding: 56px 0 24px;
}

main {
  padding-bottom: 48px;
}

footer {
  border-top: 1px solid var(--line);
  color: var(--secondary);
  font-size: 14px;
  padding: 24px 0 48px;
}

h1 {
  font-size: clamp(34px, 7vw, 52px);
  letter-spacing: -0.035em;
  line-height: 1.08;
  margin: 0 0 12px;
}

h2 {
  font-size: 22px;
  line-height: 1.3;
  margin: 36px 0 10px;
}

p,
ul,
ol {
  margin: 0 0 16px;
}

a {
  color: var(--accent);
  text-underline-offset: 3px;
}

.eyebrow,
.updated {
  color: var(--secondary);
}

.eyebrow {
  font-size: 14px;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  padding: 0;
}

.nav a,
.contact {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  display: inline-flex;
  min-height: 44px;
  padding: 9px 14px;
  align-items: center;
  text-decoration: none;
}

.summary {
  color: var(--secondary);
  font-size: 19px;
  max-width: 660px;
}

section {
  scroll-margin-top: 24px;
}

code {
  background: var(--surface);
  border-radius: 5px;
  padding: 2px 5px;
}

@media (max-width: 520px) {
  header {
    padding-top: 36px;
  }

  body {
    font-size: 16px;
  }
}